What are the differences between the SQL and NoSQL databases

What are the differences between the SQL and NoSQL databases?

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So here is the point-wise difference between SQL and NoSQL. I am also sharing the examples of both SQL and NoSQL for better understanding.

First, let’s understand the meaning of both –

SQL – SQL stands for Structured Query Language. It is pronounced in 2 ways as S-Q-L and Sequel. It deals with the relational database and used to search, delete, insert and update the data. This SQL language divided into clauses, expressions, operators, queries, subqueries etc.

NoSQL – NoSQL (non SQL) database is a category of Database Management System. NoSQL database are non-relational databases. This database is increasingly used in big data and real-time web applications. It can accommodate a variety of data models such as key-value pairs, documents.


a. Language

  • SQL uses Structured Query Language for manipulation of data. SQL needs predefined Schemas for determining the data structure.
  • NoSQL, sometimes we call it UnQL(Unstructured Query Language). Data is stored in different ways such as column-oriented, graph-based, document-oriented etc. NoSQL requires dynamic schemas for determining unstructured data.

b. Structure

  • SQL databases represent data in the form of tables i.e. columns and rows.
  • NoSQL databases are document based that is in the form of the graph, key-value pairs and more.

c. Scalability

  • SQL databases can be scaled vertically. These are scaled by increasing hardware horse-power.
  • NoSQL databases can be scaled horizontally. NoSQL databases are scaled by increasing the databases servers.

d. High Transactional Based Application

  • SQL databases prove best for heavy transactional type applications.
  • We can use a NoSQL database for transactions but it is not enough for high and complex transactional applications.

e. SQL databases called as (Relational Databases) RDBMS whereas NoSQL databases called as non-relational databases.

f. Examples

  • SQL – MySql, Oracle, Ms-SQL
  • NoSQL – MongoDB, Cassandra, HBase, CouchDB.

So, this was all in SQL vs NoSQL. Hope you like the explanation. Please UPVOTE if this helped you.

Answered on June 12, 2019.
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